CN106761465B - Drilling tool shock absorbing tool and its well drilling pipe column - Google Patents

Drilling tool shock absorbing tool and its well drilling pipe column Download PDF

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Publication number
CN106761465B
CN106761465B CN201710129696.1A CN201710129696A CN106761465B CN 106761465 B CN106761465 B CN 106761465B CN 201710129696 A CN201710129696 A CN 201710129696A CN 106761465 B CN106761465 B CN 106761465B
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China
Prior art keywords
damping
tool
shock absorbing
dummy piston
drilling tool
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CN201710129696.1A
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CN106761465A (en
Inventor
崔龙连
汪海阁
葛云华
张富成
卓鲁斌
毕文欣
邹灵战
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China National Petroleum Corp
CNPC Engineering Technology R&D Co Ltd
Beijing Petroleum Machinery Co Ltd
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China National Petroleum Corp
CNPC Drilling Research Institute Co Ltd
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Priority to CN201710129696.1A priority Critical patent/CN106761465B/en
Publication of CN106761465A publication Critical patent/CN106761465A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/076Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

It includes: damping executing agency that the present invention, which discloses a kind of drilling tool shock absorbing tool and its well drilling pipe column, drilling tool shock absorbing tool, comprising: outer tube, the damping dummy piston in the outer tube;The damping dummy piston is equipped with its perforative first runner along the outer tube extending direction;The outer wall of the damping dummy piston is equipped with variable diameter step;The wall of the outer tube is equipped with pressure conducting bores;The pressure conducting bores can conduct the external pressure outside the drilling tool shock absorbing tool to the variable diameter step;The damping dummy piston is acted on interior pressure on its end face and contrary with the external pressure in the outer tube by drilling fluid;The damping dummy piston can move under the action of the external pressure and the interior pressure along the extending direction of the outer tube;The control mechanism connecting with the damping executing agency can control the movement of the damping dummy piston according to the vibration information of drilling tool according to pre-defined rule.

Description

Drilling tool shock absorbing tool and its well drilling pipe column
Technical field
The present invention relates to Petroleum Production scene drilling applications, and the drilling tool that especially protection drilling tool improves drill bit efficiency of breaking rock subtracts Shake tool and its well drilling pipe column.
Background technique
Often bored during petroleum, natural gas and geological drilling meet some hard formations, gravel and it is soft or hard staggeredly Stratum.Situations such as shaft bottom is uneven, drill teeth interval indentation rock and rock interval are broken, drill string oculocentric around well whirling motion is all It can make drill string that circumferential vibration, transverse vibration and axial vibrations occur.It is longitudinally shaken when the longitudinal vibration frequency and drilling tool of drill bit When intrinsic frequency matches, bouncing of drilling tool phenomenon i.e. covibration will be generated.Drill string resonance will cause engineering accident, keep drill string too early Failure, or even eventually lead to oil well and scrap.Causality loss caused by related reported literature shakes because of down-hole equipment every year is beautiful up to 300,000,000 Member.The vibration problems of drill string are to cause downhole tool and other bottom drill tools to damage and lead to the main of various down-hole accidents generations One of reason severely impacts drill tool life, leads to drill bit premature failure, seriously affects bit life and drilling efficiency.
Drilling well shock absorbing tool is to eliminate or mitigate drilling failure for mitigating drilling tool vibration, improve one kind of drilling efficiency Tool.Common axial damping tool has mechanical disk spring type shock absorbing tool, fluid pressure type shock absorbing tool.Shock absorbing tool is mounted on brill In tool, when boring the vibration of bit drilling tool caused by meeting bad ground, axial damping tool can be effectively reduced drilling tool, bit vibration, Drilling tool premature failure is avoided, drill bit efficiency of breaking rock is improved.
The rigidity of traditional drilling well axial direction shock absorbing tool has been set when being factory, for different drilling tool vibration frequencies and amplitude It cannot make and targetedly adjust, therefore conventional axial shock absorbing tool using effect is irregular.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of drilling tool shock absorbing tool and its well drilling pipe column, energy Mitigate drilling tool vibration in real time according to underground shock conditions, improves drill bit efficiency of breaking rock, protect drilling tool.
The present invention is solved the above problems using following scheme:
A kind of drilling tool shock absorbing tool, comprising:
Damping executing agency comprising: outer tube, the damping dummy piston in the outer tube;The damping balance is lived Plug is equipped with its perforative first runner along the outer tube extending direction;The outer wall of the damping dummy piston is equipped with variable diameter platform Rank;The wall of the outer tube is equipped with pressure conducting bores;The pressure conducting bores can be by the external pressure outside the drilling tool shock absorbing tool It conducts to the variable diameter step;The damping dummy piston acted on its end face in the outer tube by drilling fluid and with institute State the contrary interior pressure of external pressure;The damping dummy piston can edge under the action of the external pressure and the interior pressure The extending direction of the outer tube is mobile;
The control mechanism connecting with the damping executing agency, can be according to the vibration information of drilling tool according to pre-defined rule Control the movement of the damping dummy piston.
As a preferred embodiment, the control mechanism include connect described outer tube one end outer housing and The detection device and processing unit being set on the outer housing;The detection device is connected with the processing unit;It is described Processing unit connects the damping dummy piston;
The outer housing is along the outer tube extending direction by its perforative second flow channel;The detection device is able to detect brill The vibration information of tool;The processing unit can control the damping balance according to pre-defined rule according to the vibration information of drilling tool and live The movement of plug.
As a preferred embodiment, the wall of the outer housing is equipped with the first pockets and the second receiving is recessed Slot;The detection device includes positioned at the vibration survey sensor of the first pockets and lid conjunction in first pockets On sensor sealing gland;The processing unit includes existing positioned at the damping processor of second pockets and lid conjunction Processor sealing gland on second pockets;The vibration survey sensor described in data line connection by subtracting Shake processor.
As a preferred embodiment, the control mechanism is when the vibration information is more than predetermined value described in control Damping dummy piston is mobile;The control mechanism stops the damping dummy piston when the vibration information is less than predetermined value and moves It is dynamic.
As a preferred embodiment, the control mechanism is according to institute when the vibration information is more than predetermined value It is mobile to state damping dummy piston described in the strength control of vibration information.
As a preferred embodiment, the control mechanism is controlled by changing the inner diameter size of the first runner The movement of the damping dummy piston.
As a preferred embodiment, the damping dummy piston is equipped with diameter changing mechanism;The control mechanism connection The diameter changing mechanism;The control mechanism can control the inner diameter size that the diameter changing mechanism changes the first runner.
As a preferred embodiment, the diameter changing mechanism is the variable diameter electricity being set on the wall of the first runner Magnet valve;The variable diameter solenoid valve includes multiple electromagnetism variable diameter valve blocks circumferentially arranged;The two neighboring electromagnetism variable diameter valve block Between be equipped with pressure spring;The control mechanism is separate or close by controlling the two neighboring electromagnetism variable diameter valve block, to change The size of multiple surrounded circumference of electromagnetism variable diameter valve block.
As a preferred embodiment, the quantity of the variable diameter solenoid valve is multiple;Multiple variable diameter solenoid valves Extending direction along the outer tube is arranged.
As a preferred embodiment, the wall of the first runner is equipped with the circumference for accommodating the variable diameter solenoid valve Groove;The internal diameter of the first runner is constant along its length when the variable diameter solenoid valve non-variable diameter.
As a preferred embodiment, the upper surface area of the damping dummy piston is greater than its lower end surface area; The outer wall of the damping dummy piston is reduced along in top-down direction through the variable diameter outer diameter of step.
As a preferred embodiment, the wall spline fitted of the damping dummy piston and the first runner.
As a preferred embodiment, the pressure conducting bores are provided with filter, to carry out to the liquid of inflow Filtering.
It is connect as a preferred embodiment, the lower end of the damping dummy piston is stretched out the outer tube and is connected with down Head.
As a preferred embodiment, further including passing through power supply with the damping executing agency and the control mechanism The power supply mechanism of cable connection can power for the damping executing agency and the control mechanism.
As a preferred embodiment, the bottom of first pockets and the second pockets is respectively equipped with It is passed through the threading hole of the second flow channel;The service cable by the threading hole connect the vibration survey sensor and The damping processor.
As a preferred embodiment, the power supply mechanism includes upper tube body, is fixedly installed on the upper tube Intracorporal battery unit;The battery unit connects the damping executing agency and the control machine by the service cable Structure.
As a preferred embodiment, the battery unit includes battery case and in the battery case Battery;The overcurrent annular space passed through for drilling fluid is equipped between the battery unit and the inner wall of the upper tube body;The battery case With battery cavities and the cell sealing lid being covered on battery cavities;The lower end of the battery case is equipped with power outlet, institute It states service cable and the electricity of the battery is delivered to by the damping executing agency and the control mechanism by the power outlet.
As a preferred embodiment, the upper end of the battery case passes through between upper flange and the inner wall of the upper tube body Gap cooperation;The lower end of the battery case passes through the inner wall clearance fit of lower flange and the upper tube body;The upper flange and described Recirculation hole was respectively equipped on lower flange.
As a preferred embodiment, the control mechanism is located at the vibration executing agency and the power supply Between mechanism;The upper end of the outer housing is connect with the lower thread of the upper tube body;The lower end of the outer housing and described outer The threaded upper ends of pipe connect.
A kind of well drilling pipe column, comprising: drilling tool shock absorbing tool and drill bit described in drilling rod, any embodiment as above.
By above technical scheme, drilling tool shock absorbing tool and its well drilling pipe column in the present invention are held by damping executing agency Row damping movement, meanwhile, equipped with control mechanism according to the vibration information of drilling tool according to pre-defined rule control damping executing agency The movement of damping dummy piston, thus, drilling tool shock absorbing tool and its well drilling pipe column in the present invention can shake feelings according to underground Condition mitigates drilling tool vibration in real time, improves drill bit efficiency of breaking rock, protects drilling tool.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those skilled in the art without any creative labor, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the drilling tool shock absorbing tool that one embodiment of the present invention provides;
Fig. 2 is the cooperation schematic diagram of damping dummy piston and outer tube in Fig. 1;
Fig. 3 A is the non-undergauge status architecture schematic diagram of electromagnetism Diameter changeable valve;
Fig. 3 B is electromagnetism Diameter changeable valve undergauge status architecture schematic diagram;
Fig. 4 A is pressure schematic diagram suffered by damping dummy piston under the non-undergauge state of electromagnetism Diameter changeable valve;
Fig. 4 B is the stress diagram of damping dummy piston in Fig. 4 A;
Fig. 5 A is pressure schematic diagram suffered by damping dummy piston under electromagnetism Diameter changeable valve undergauge state;
Fig. 5 B is the stress diagram of damping dummy piston in Fig. 5 A;
Fig. 6 A is damping executing agency working state schematic representation under the non-undergauge state of electromagnetism Diameter changeable valve;
Fig. 6 B is damping executing agency working state schematic representation under electromagnetism Diameter changeable valve undergauge state.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without making creative work, all should belong to guarantor of the present invention The range of shield.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more Any and all combinations of relevant listed item.
Referring to Fig. 1, a kind of structural schematic diagram of the drilling tool shock absorbing tool provided for one embodiment of the present invention, such as schemes Shown in 1, which includes: damping executing agency comprising: outer tube 301, the damping in the outer tube 301 Dummy piston 302;The damping dummy piston 302 is equipped with its perforative first runner along 301 extending direction of outer tube;Institute The outer wall for stating damping dummy piston 302 is equipped with variable diameter step;The wall of the outer tube 301 is equipped with pressure conducting bores 306;It is described Pressure conducting bores 306 can conduct the external pressure outside the drilling tool shock absorbing tool to the variable diameter step;The damping balance is lived Plug 302 is acted on interior pressure on its end face and contrary with the external pressure in the outer tube 301 by drilling fluid;Institute Stating damping dummy piston 302 can move under the action of the external pressure and the interior pressure along the extending direction of the outer tube 301 It is dynamic;The control mechanism connecting with the damping executing agency can be controlled according to the vibration information of drilling tool according to pre-defined rule The movement of the damping dummy piston 302.
In the present embodiment, the control mechanism may include the outer housing 201 for connecting described 301 one end of outer tube, with And it is set to detection device and processing unit on the outer housing 201;The detection device is connected with the processing unit; The processing unit connects the damping dummy piston 302.
Wherein, the outer housing 201 is along 301 extending direction of outer tube by its perforative second flow channel.As shown in Figure 1, It is communicated in second flow channel and outer tube 301, drilling fluid flows into outer tube 301 through second flow channel.The detection device is able to detect brill The vibration information of tool.The processing unit can control the damping balance according to pre-defined rule according to the vibration information of drilling tool and live The movement of plug.
As shown in Figure 1, the wall of the outer housing 201 is equipped with the first pockets and the second pockets.The detection Device includes that the vibration survey sensor 202 for being located at the first pockets and lid close the sensing on first pockets Device sealing gland 203.The processing unit includes positioned at the damping processor 205 of second pockets and lid conjunction in institute State the processor sealing gland 204 on the second pockets;The vibration survey sensor 202 is connected by data line 206 Connect the damping processor.
In the present embodiment, vibration survey sensor 202 can be monitored in real time, handle, analyzing down-hole equipment vibration, according to In case of need according to program setting, damping processor is passed the signal along to.
Wherein, outer housing 201 is whole cylindrical.The upper end and lower end of outer housing 201 offer joint screw thread, wherein The screw thread of upper end can be connected with the upper tube body 101 of following power supply mechanisms, and the screw thread of lower end and damping execute system Outer tube 301 is connected.
Vibration survey sensor 202 can be by being threadably mounted on outer housing 201, and sensor sealing gland 203 will shake Dynamic measurement sensor 202 is sealed in the first pockets.
Damping processor 205 is mounted on outer housing 201, and damping processor sealing gland 204 is close by damping processor 205 Envelope.Damping processor 205 is to be loaded with software program on hardware configuration or hardware configuration.Specifically, damping processor 205 It can be CPU, circuit board, PLC, single-chip microcontroller etc..Vibration survey sensor 202 passes through data line 206 for the number of measurement It is believed that number being transmitted to damping processor 205.
In the present embodiment, the control mechanism controls the damping balance when the vibration information is more than predetermined value Piston 302 is mobile;The control mechanism stops the damping dummy piston 302 when the vibration information is less than predetermined value and moves It is dynamic.Further, when the vibration information is more than predetermined value, the control mechanism is according to the strength control of the vibration information The damping dummy piston 302 is mobile.Specifically, the control mechanism is controlled by changing the inner diameter size of the first runner The movement of the damping dummy piston 302.
Damping processor 205 acquires vibration survey sensing data according to the sample frequency of program setting first, then right Vibration data carries out processing analysis, and compares with the data set in program.
In a specific embodiment, damping processor 205 can compare vibration information intensity (shockproofness) first Whether it is greater than the set value, if more than being setting value, then damping processor 205 is classified intensity.
Damping processor 205 determines first of different inner diameters in starting damping execution system according to vibration information strength grade Runner, starting shock-damping structure (damping dummy piston 302) operation mitigate drilling tool vibration.Vibration information intensity can under normal conditions To be divided into 5-8 grades of shockproofnesses, and corresponding 5-8 grades of different first runner internal diameters.
When underground vibration data (vibration information) is less than setting value, damping processor 205 passes to damping for signal is executed Processor shock-damping structure stops working.This can damping eliminate destruction of the down-hole equipment axial vibrations to drilling tool, drill bit, improve and bore Head efficiency of breaking rock, and life tools can be effectively improved.
The drilling tool shock absorbing tool of present embodiment can also include logical with the damping executing agency and the control mechanism The power supply mechanism of service cable connection is crossed, can be powered for the damping executing agency and the control mechanism.In this reality It applies in mode, power supply mechanism provides power supply for drilling tool shock absorbing tool, guarantees the underground electricity consumption of drilling tool shock absorbing tool.
It continues from the preceding paragraph description, the bottom of first pockets and the second pockets, which is respectively equipped with, is passed through described The threading hole of two runners;The service cable is connected at the vibration survey sensor and the damping by the threading hole Manage device.
Battery power supply can be used in power supply mechanism, and turbogenerator power supply can also be used.In present embodiment, preferably It is powered using battery, without too long power cable is arranged, convenient for being arranged and reduce cost.
Please continue to refer to Fig. 1, the power supply mechanism may include upper tube body 101, be fixedly installed on the upper tube body Battery unit in 101.Wherein, upper tube body 101 is cylinder, inside there is step through-hole.The step through-hole is communicated with second flow channel, Drilling fluid enters second flow channel through step through-hole.
The upper section of the step through-hole is equipped with internal screw thread, (for example is bored with connecting the tool being located above drilling tool shock absorbing tool Bar), the lower section of step through-hole is shunk, meanwhile, the lower end of upper tube body 101, which is shunk, to be formed external screw thread and is connected with outer housing 201.
As shown in Figure 1, the fixed interlude for being located at step through-hole of battery unit, the substantially cylindrical cavity of the interlude. The battery unit connects the damping executing agency and the control mechanism by the service cable 107.
Specifically, the battery unit may include battery case 103 and the battery in the battery case 103 105.The overcurrent annular space passed through for drilling fluid is equipped between the battery unit and the inner wall of the upper tube body;The battery case tool The cell sealing lid 102 for having battery cavities and being covered on battery cavities.The lower end of the battery case 103 is equipped with power outlet 106, the electricity of the battery 105 is delivered to the damping executing agency by the power outlet 106 by the service cable 107 And the control mechanism.
Further, the upper end of the battery case 103 passes through the inner wall clearance fit of upper flange and the upper tube body;It is described The lower end of battery case passes through the inner wall clearance fit of lower flange and the upper tube body;On the upper flange and the lower flange respectively It was equipped with recirculation hole 104.
As shown in Figure 1, upper flange and lower flange are that flange ring, upper flange and lower flange play the upper and lower ends of battery case To centralizing function.Upper flange and lower flange were equipped with recirculation hole 104, so that drilling fluid flows through.103 lower flange end face of battery case It is placed in upper tube body 101 on stepped hole, the outer diameter and 101 inner hole clearance fit of upper tube body of upper flange and lower flange.Battery 105 It is placed in battery case 103,102 sealed cell of battery cavities sealing cover is arranged at top.Power outlet 106 can be equipped with seal approach, Electricity is transported to control mechanism to the power outlet 106 that service cable 107 is sealed by lower bands and damping executes system.
It can be seen that in the present embodiment, the control mechanism can be located at the vibration executing agency and the electric power Between organization of supply.The upper end of the outer housing 201 is connect with the lower thread of the upper tube body 101;The outer housing 201 Lower end is connect with the threaded upper ends of the outer tube 301.Service cable 107 (is worn by the power supply sealing hole on 201 inner hole of outer housing String holes) electricity is respectively delivered to shock sensor 202 and damping processor 205.
In the present embodiment, damping executes system by receiving the signal enabling of control mechanism or stopping damping work Make.It includes outer tube 301, damping dummy piston 302, pressure conducting bores 306 that damping, which executes system,.Wherein, outer tube 301 is generally round Cylindricality, top are equipped with screw thread and are connected with 201 screw thread of outer housing, and 301 inside of outer tube is similar to upper tube body 101, are again provided with step Hole.
Damping dummy piston 302 is the T shape cylindrical body for having an inner via hole (i.e. first runner), Upper cylindrical and outer tube 301 Interior circular hole cooperation, lower bottom end are equipped with screw thread and are connected with lower contact 308.As shown in Fig. 2, interlude is spline segment and outer tube 301 Lower end spline be connected.The damping dummy piston, can be in transmitting torque by the wall spline fitted with the first runner It can move up and down again simultaneously.As shown in Figure 1, the lower end of the damping dummy piston 302 is stretched out the outer tube 301 and is connected with down Connector 308.The lower contact 308 can connect the tool below drilling tool shock absorbing tool, be moved through in damping dummy piston 302 Opposite change can also occur at a distance from the tool of lower contact 308 and lower section for the tool of Cheng Zhong, outer tube 301 and upper part.
302 upper end cylinder outer circle of damping dummy piston is equipped with seal combination 303 (such as sealing ring, sealing pair), sealing group 303 are closed between the Upper cylindrical section of seal shock-proof dummy piston 302 and the inner wall of damping executing agency outer tube 301.
In the present embodiment, one of interior pressure and external pressure are downwards, another upward.To be convenient to carry out, the damping is flat The upper surface area of weighing apparatus piston is greater than its lower end surface area, so that the direction of interior pressure is downward.Further, the damping The outer wall of dummy piston is reduced along in top-down direction through the variable diameter outer diameter of step.The drilling well that pressure conducting bores 306 are passed through Liquid (between drilling tool shock absorbing tool and the borehole wall) acts on variable diameter step.
Pressure conducting bores 306 are set to 301 lower part of outer tube, and filter 307 can be set thereon.In general, filter 307 can To be set to the inside of pressure conducting bores 306.In the present embodiment, pressure conducting bores 306 are for transmitting annular space drilling hydraulic The liquid of power, 307 pairs of filter inflows is filtered, so that landwaste be avoided to block damping actuator pressure conduction hole 306.
The damping dummy piston is equipped with diameter changing mechanism;The control mechanism connects the diameter changing mechanism;The control machine Structure can control the inner diameter size that the diameter changing mechanism changes the first runner.Wherein, control mechanism can control to variable diameter The size of current or voltage swing of mechanism input or the size in magnetic field, so that the size of diameter changing mechanism is controlled, certainly, control Mechanism can also control the inner diameter size of diameter changing mechanism by transmission information command.In view of diameter changing mechanism realizes the side of variable diameter It is a variety of no matter formula exists from the form of structure or structure combination software, and present embodiment is not intended to be limited in any herein.
Specifically, the diameter changing mechanism can be the variable diameter solenoid valve 304 being set on the wall of the first runner.Power supply Cable 107 and signal-transmitting cable 206 connect electromagnetism Diameter changeable valve 304.
Wherein, the variable diameter solenoid valve 304 includes multiple electromagnetism variable diameter valve blocks 3041 circumferentially arranged, for example electromagnetism becomes Diameter valve block 3041 can be 2-10 block.Pressure spring 305 is equipped between the two neighboring electromagnetism variable diameter valve block.The control mechanism passes through It is separate or close to control the two neighboring electromagnetism variable diameter valve block 3041, to change multiple 3041 institutes of electromagnetism variable diameter valve block Surround the size of circumference.
Specifically, two neighboring electromagnetism variable diameter valve block 3041 can be carried out by magnetic field caused by electromagnetic induction attract or Repel, correspondingly, control mechanism can control the size of current inputted to electromagnetism variable diameter valve block 3041, to control each electromagnetism The size in magnetic field produced by variable diameter valve block 3041.
In the present embodiment, for the structure of electromagnetism Diameter changeable valve 304 as shown in Fig. 3 A, Fig. 3 B, electromagnetism Diameter changeable valve 304 includes pressure Spring 305 and electromagnetism variable diameter valve block 3041.Fig. 3 A be 304 original state of electromagnetism Diameter changeable valve (it can be appreciated that non-undergauge state, Electromagnetism Diameter changeable valve 304 can be not powered under this state, that is, control mechanism will be between power supply mechanism and electromagnetism Diameter changeable valve 304 Truncation), electromagnetism variable diameter valve block 3041 is in open configuration under the active force of pressure spring 305, at this point, fast 3041 groups of electromagnetism Diameter changeable valve At the flowing hole of a circular hole, this flowing hole can be consistent or identical with the inner via hole diameter of damping dummy piston 302.
Specifically such as Fig. 4 A to Fig. 6 B, the wall of the first runner is equipped with the circumference for accommodating the variable diameter solenoid valve 304 Groove;The internal diameter of the first runner is constant along its length when the 304 non-variable diameter of variable diameter solenoid valve.In present embodiment In, the quantity of the variable diameter solenoid valve 304 can be multiple (two or more).Multiple variable diameter solenoid valves 304 are along described The extending direction of outer tube is arranged.Wherein, the quantity of circumferential groove is identical as the quantity of variable diameter solenoid valve 304 and corresponds.Phase It can be spaced a distance between adjacent two variable diameter solenoid valves 304, to play preferably damping effect.
In the present embodiment, Fig. 3 B is the state after electromagnetism Diameter changeable valve 304 starts, and electromagnetism variable diameter valve block 3041 encloses composition One circular closure channel, close passage diameter are less than the first runner internal diameter of damping dummy piston 302.Due to first runner Internal diameter becomes smaller, and therefore, the upper end area of damping dummy piston 302 increases, and drilling fluid acts on the production of damping dummy piston 302 thus A raw bigger down force.
It in the present embodiment, is the inactive stress of electromagnetism Diameter changeable valve 304 of damping dummy piston shown in Fig. 4 A and Fig. 4 B Figure.As shown in Figure 4 A, 302 upper surface of damping dummy piston is Pp by pressure in drilling tool, and upper surface area is Auo, variable diameter step By annular pressure Pa, variable diameter step surface area is Ado in face.
Fig. 4 B is 302 stress condition of damping dummy piston, by downward directed force F o, upward directed force F a, to realize essence Really control considers the drilling fluid in drilling tool shock absorbing tool to the active force WOB of 302 lower end surface of damping dummy piston together.To, Relationship is as follows between these power:
Fo=Auo×Pp
Fa=Ado×Pa
WOB+Fa> Fo
At this point, the suffered resultant force of damping dummy piston 302 is upwards, therefore, as shown in Figure 6A, damping dummy piston 302 is in Upper dead center position (upper dead center position outer tube inner wall be equipped with position-limiting action variable diameter at).
It is force diagram after damping dummy piston electromagnetism Diameter changeable valve starts shown in Fig. 5 A and Fig. 5 B.Shown in Fig. 5 A, damping balance 302 upper surface of piston is Pp by pressure in drilling tool, and upper surface area is Aso, and variable diameter step surface is by annular pressure Pa, lower end surface face Product is Ado.
Comparison diagram 4A and Fig. 5 A, 302 upper surface of damping dummy piston due to electromagnetism Diameter changeable valve 304 start and area becomes larger. Fig. 5 B is 302 stress condition of damping dummy piston, by upper and lower effect Fs, upward directed force F a, considers drilling tool damping work together The active force WOB of drilling fluid in tool to 302 lower end surface of damping dummy piston.Relationship is as follows between these power:
Fs=Aus×Pp
Fa=Ado×Pa
Fs> WOB+Fa
At this point, the suffered resultant force of damping dummy piston 302 is downwards, therefore, as shown in Figure 6B, damping dummy piston 302 is in Lower dead point position.Under normal conditions, the downward resultant force of damping dummy piston 302 is greater than upward resultant force 20-30KN at this time.
In this case, when drill bit is beated, drill bit drives the flat piston 302 of damping upwards by lower contact 308 Movement, then under hydrodynamic thrust effect, damping dummy piston 302 is moved downwardly to bottom dead centre (Fig. 6 B) again.It is pushed away in fluid power Under dynamic, drilling tool, drill bit axial vibrations mitigated significantly by the effect of this hydraulic resistance balance, to protect drilling tool, drill bit, improve Drill bit efficiency of breaking rock, extends drill tool life.
The upper surface of damping dummy piston 302 is different after different electromagnetism Diameter changeable valves 304 starts, therefore provides damping intensity Range is not also identical, it is generally the case that 304 quantity of electromagnetism Diameter changeable valve is 1-10 in damping execution system.
In conclusion the shock absorbing tool that present embodiments provide for a kind of suitable for reducing drilling tool axial vibrations, the damping Tool can carry out real-time data acquisition to underground axial vibration, analysis is handled and control, be that one kind can carry out closed loop in underground The axial damping tool of control.
The drilling tool shock absorbing tool relies on the underground axial vibration of vibration survey sensor real-time measurement, and damping processor is according to setting Determine program according to preset frequency collection analysis axial vibration data, it is big according to oscillation intensity when axial vibration is more than setting value Different electromagnetism Diameter changeable valves, makes damping executing agency be in damping working state in small starting damping execution system.Damping executes Mechanism mitigates drilling tool, drill vibration by hydraulic resistance balance significantly, improves the bit drilling tool service life, improves drill bit efficiency of breaking rock.
In addition, present embodiment provide shock absorbing tool again when axial vibration be no more than setting value when, do not start electromagnetism change Diameter valve.To which the drilling tool shock absorbing tool of present embodiment can start damping executing agency in real time, improve drill bit efficiency, also can It does not work in the case where underground vibrating does not influence drillng operation, to extend the axial shock absorbing tool service life.
Another embodiment of the present invention also provides a kind of well drilling pipe column, comprising: described in drilling rod, any embodiment as above Drilling tool shock absorbing tool and drill bit.
Herein cited any digital value all include between lower limit value to upper limit value with the lower value of an incremented and The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as Fruit elaborates that the quantity an of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20 To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification 68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1. These are only intended to the example clearly expressed, it is believed that all possibility for the numerical value enumerated between minimum and peak Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range " about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to cover that " about 20 to about 30 ", including at least the endpoint indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot Together in this.Describing combined term " substantially by ... constitute " should include identified element, ingredient, component or step and reality Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or " comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any Attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used to The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch It states, many embodiments and many applications except provided example all will be aobvious and easy for a person skilled in the art See.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to appended claims and this The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special The disclosure of benefit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims Any aspect is not intended to abandon the body matter, also should not be considered as inventor the theme is not thought of as it is disclosed A part of subject matter.

Claims (19)

1. a kind of drilling tool shock absorbing tool characterized by comprising
Damping executing agency comprising: outer tube, the damping dummy piston in the outer tube;The damping dummy piston is set Have its perforative first runner along the outer tube extending direction;The outer wall of the damping dummy piston is equipped with variable diameter step; The wall of the outer tube is equipped with pressure conducting bores;The pressure conducting bores can conduct the external pressure outside the drilling tool shock absorbing tool To the variable diameter step;The damping dummy piston acted on its end face in the outer tube by drilling fluid and with it is described outer The opposite interior pressure of pressure direction;The damping dummy piston can be along described under the action of the external pressure and the interior pressure The extending direction of outer tube is mobile;
The control mechanism connecting with the damping executing agency can be controlled according to the vibration information of drilling tool according to pre-defined rule The movement of the damping dummy piston;The control mechanism includes connecting the outer housing of described outer tube one end and being set to institute State the detection device and processing unit on outer housing;The detection device is connected with the processing unit;The processing unit Connect the damping dummy piston;
The outer housing is along the outer tube extending direction by its perforative second flow channel;The detection device is able to detect drilling tool Vibration information;The processing unit can control the damping dummy piston according to pre-defined rule according to the vibration information of drilling tool It is mobile;
It is mobile that the control mechanism controls the damping dummy piston when the vibration information is more than predetermined value;The control machine It is mobile that structure stops the damping dummy piston when the vibration information is less than predetermined value.
2. drilling tool shock absorbing tool as described in claim 1, it is characterised in that: it is recessed that the wall of the outer housing is equipped with the first receiving Slot and the second pockets;The detection device includes positioned at the vibration survey sensor of the first pockets and lid conjunction in institute State the sensor sealing gland on the first pockets;The processing unit includes at the damping of second pockets It manages device and lid closes the processor sealing gland on second pockets;The vibration survey sensor is passed by data Defeated line connects the damping processor.
3. drilling tool shock absorbing tool as described in claim 1, it is characterised in that: when the vibration information is more than predetermined value, institute It is mobile to state control mechanism damping dummy piston according to the strength control of the vibration information.
4. drilling tool shock absorbing tool as described in claim 1, it is characterised in that: the control mechanism is described first-class by changing The inner diameter size in road controls the movement of the damping dummy piston.
5. drilling tool shock absorbing tool as claimed in claim 4, it is characterised in that: the damping dummy piston is equipped with diameter changing mechanism; The control mechanism connects the diameter changing mechanism;The control mechanism can control the diameter changing mechanism and change the first runner Inner diameter size.
6. drilling tool shock absorbing tool as claimed in claim 5, it is characterised in that: the diameter changing mechanism is described first-class to be set to Variable diameter solenoid valve on the wall in road;The variable diameter solenoid valve includes multiple electromagnetism variable diameter valve blocks circumferentially arranged;It is two neighboring Pressure spring is equipped between the electromagnetism variable diameter valve block;The control mechanism is separate by controlling the two neighboring electromagnetism variable diameter valve block Or it is close, to change the size of multiple surrounded circumference of electromagnetism variable diameter valve block.
7. drilling tool shock absorbing tool as claimed in claim 6, it is characterised in that: the quantity of the variable diameter solenoid valve is multiple;It is more A variable diameter solenoid valve is arranged along the extending direction of the outer tube.
8. drilling tool shock absorbing tool as claimed in claim 6, it is characterised in that: the wall of the first runner is equipped with described in receiving The circumferential groove of variable diameter solenoid valve;The internal diameter of the first runner is constant along its length when the variable diameter solenoid valve non-variable diameter.
9. drilling tool shock absorbing tool as described in claim 1, it is characterised in that: the upper surface area of the damping dummy piston is big In its lower end surface area;The outer wall of the damping dummy piston is reduced along in top-down direction through the variable diameter outer diameter of step.
10. drilling tool shock absorbing tool as described in claim 1, it is characterised in that: the damping dummy piston with it is described first-class The wall spline fitted in road.
11. drilling tool shock absorbing tool as described in claim 1, it is characterised in that: the pressure conducting bores are provided with filter, with The liquid of inflow is filtered.
12. drilling tool shock absorbing tool as described in claim 1, it is characterised in that: institute is stretched out in the lower end of the damping dummy piston It states outer tube and is connected with lower contact.
13. drilling tool shock absorbing tool as claimed in claim 2, it is characterised in that: further include and the damping executing agency and institute The power supply mechanism that control mechanism is connected by service cable is stated, can be the damping executing agency and the control mechanism Power supply.
14. drilling tool shock absorbing tool as claimed in claim 13, it is characterised in that: first pockets and the second receiving The bottom of groove is respectively equipped with the threading hole for being passed through the second flow channel;The service cable passes through described in threading hole connection Vibration survey sensor and the damping processor.
15. drilling tool shock absorbing tool as claimed in claim 13, it is characterised in that: the power supply mechanism include upper tube body, It is fixedly installed on the intracorporal battery unit of the upper tube;The battery unit connects the damping by the service cable and executes Mechanism and the control mechanism.
16. drilling tool shock absorbing tool as claimed in claim 15, it is characterised in that: the battery unit include battery case and Battery in the battery case;The mistake passed through for drilling fluid is equipped between the battery unit and the inner wall of the upper tube body Flow annular space;The cell sealing lid that the battery case has battery cavities and is covered on battery cavities;Under the battery case End is equipped with power outlet, and the electricity of the battery is delivered to the damping by the power outlet and executes machine by the service cable Structure and the control mechanism.
17. drilling tool shock absorbing tool as claimed in claim 16, it is characterised in that: the upper end of the battery case by upper flange with The inner wall clearance fit of the upper tube body;Matched by the inner wall gap of lower flange and the upper tube body lower end of the battery case It closes;Recirculation hole was respectively equipped on the upper flange and the lower flange.
18. drilling tool shock absorbing tool as claimed in claim 15, it is characterised in that: the control mechanism is located at damping execution Between mechanism and the power supply mechanism;The upper end of the outer housing is connect with the lower thread of the upper tube body;It is described outer The lower end of shell is connect with the threaded upper ends of the outer tube.
19. a kind of well drilling pipe column characterized by comprising drilling rod, the drilling tool damping work as described in claim 1-18 is any Tool and drill bit.
CN201710129696.1A 2017-03-07 2017-03-07 Drilling tool shock absorbing tool and its well drilling pipe column Active CN106761465B (en)

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323852A (en) * 1992-11-03 1994-06-28 Atlantic Richfield Company Torque limiter for auger gravel pack assembly
CN2284294Y (en) * 1996-03-06 1998-06-17 张益友 Level well propellor
CN102031938B (en) * 2010-11-25 2012-12-19 中国石油化工股份有限公司 Shock absorber for drilling tool in oil-gas drilling
IES86164B2 (en) * 2012-04-05 2013-03-27 Mincon Internat Ltd Symmetrical bit for directional drilling tool
CN203499673U (en) * 2013-10-18 2014-03-26 北京天和正庆科技发展有限公司 Radial vibration reduction module of inclinometer while drilling
CN105863525B (en) * 2016-06-02 2017-09-29 西南石油大学 The anti-viscous motion instrument that antifriction resistance increases benefit is realized using rolling screw
CN206753510U (en) * 2017-03-07 2017-12-15 中国石油天然气集团公司 Drilling tool shock absorbing tool and its well drilling pipe column

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